Finding the Fourth Proportional to 214,870.96, 322,168.20 and 140,912.56

Step by Step Solution

1. Step 1: Write the proportion equation
   214,870.96 : 322,168.20 = 140,912.56 : x
2. Step 2: Convert to fraction form
   214,870.96/322,168.20 = 140,912.56/x
3. Step 3: Cross multiply
   214,870.96x = 322,168.20 × 140,912.56
4. Step 4: Simplify right side
   214,870.96x = 45,397,545,812.59
5. Step 5: Solve for x
   x = 45,397,545,812.59/214,870.96
6. Step 6: Final answer
   x = 211,278.18